I am helping a friend with his Aircooled motor.
(Actually it is a 1641 conversion of a 1600 motor - but apparently the heads are the same)
We stripped the liners and examined the pistons, rings and liners and they look just fine and measure up just fine too. ( damn site easier to work on than my DG

However the heads do seem to need new guides as they do rock more than is considered normal and it was smoking a bit, esp on the over run.
He has been quoted £180 to fit new guides and lap in the valves by a local engine place

Question = Do you Aircooled types out there have any recommendations as to where to get good recon heads at a sensible price (JK being the obvious choice at around £90 each, but are they OK ?)